Galaxy S3 has Smart Stay feature. This feature is really an amazing one. If you are a voracious reader and love reading on your S3 then Smart Stay feature will keep the phone away from getting the display off.http://www.androidust.com/enable-smart-stay-­feature-on-galaxy-s3/

In the interest of customers.
Technology is really changing very fast example:- Mobile phones with quad core cpus. Who is really wanted them, customers or mobile maker companies. Even my 5 year old computer has single core cpu and just 1 gb ram and it handles all tasks smoothly with windows 7. I don't know why mobile phones need so much power like quad core etc. Is this a planned strategy of mobile companies to urge customers to purchase their new costly phones with high features? whether they use them or not. Even quad core laptops are not common in the market until now. Do mobiles really need so much processing power? Think about it.